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Newer buick GS supercharger on an older buick?

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  • Newer buick GS supercharger on an older buick?

    Hey all
    Not planning anything, but curious if I ever get another car and wanna beat up my 96 regal...

    Is it possible to find a GS at "U pull it", take out the supercharger and install it onto the '96 regal? MY regal has a 3100, the SC regal gs has a 3800

    Is it possible to make it fit?

  • #2
    Not easily. You are talking about a 90* and 60* engine, the parts aren't even closely compatable.
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    • #3
      3800 is the 90* BUICK engine, and the 3100 is the 60* CHEVY engine.

      In order to use the buicks supercharger, you would have to make a custom lower intake manifold at LEAST.

      You would get better results (and cheaper to do) by making a custom turbo setup for your car. The turbo is also more efficient than the roots style supercharger used in the buick engines.
      Taylor
      1988 Olds Cutlass Supreme 3100 MPFI
      1990 Pontiac Grand Prix STE 3.1 MPFI
      1994 Olds Cutlass Supreme convertible
      1998 Lincoln Mark VIII
      "find something simple and complicate it"

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      • #4
        Originally posted by 3100 MPFI View Post
        3800 is the 90* BUICK engine, and the 3100 is the 60* CHEVY engine.

        In order to use the buicks supercharger, you would have to make a custom lower intake manifold at LEAST.

        You would get better results (and cheaper to do) by making a custom turbo setup for your car. The turbo is also more efficient than the roots style supercharger used in the buick engines.
        Being Buick and Chevy hasn't mattered for years.

        Remote mount is the way to go if you are going to fabricate an Eaton to work, and it's not cheaper to go with a turbo if you have the fabrication skills to pull it off. An Eaton can be had (rebuilt) for about $250, and you will only get an ebay turbo for that (or a name-brand that needs rebuilding). I would say the cost would be close to do either one, but the difference would be efficiency, as you mentioned. A turbo is near 90% eff, centrifical blower will be as much as 70%, and a roots is closer to 60%. There would be near instant boost with a S/C, though.

        I know a guy who pushed a 5.0 Ford LTD into the 10's (with traction problems) with a single remote-mounted Eaton that has a major port job (done by his brother), and a 3:1 pulley ratio that puts the blower into the 18,000 RPM range at redline (Eaton says 14,000 is the limit). He has been running this set-up for a couple of years.

        96Buick, if you want a known good S/C, and want to tackle this job, I happen to have one that is ported with fresh bearings and seals (includes the bypass actuator), I'll sell it for $250 + shipping. For a few extra dollars, I can also make you a custom sized pulley on the CNC lathe for extra power (it has the stock 3800 pulley on it now).
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